From 08e0ed300ad369e0389dfd9335ef6d91b4f8501a Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 20 Jun 2023 12:26:46 +0200
Subject: [PATCH] sleep-config: check if we operate on regular file in
 swap_device_to_device_id() in swap file code path

Similar to the previous commit: before we continue doing swap file
operations let's ensure this actually is a swap file.
---
 src/shared/sleep-config.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/shared/sleep-config.c b/src/shared/sleep-config.c
index cee0a69cb0..0db02fae87 100644
--- a/src/shared/sleep-config.c
+++ b/src/shared/sleep-config.c
@@ -631,6 +631,10 @@ static int swap_device_to_device_id(const SwapEntry *swap, dev_t *ret_dev) {
                 return 0;
         }
 
+        r = stat_verify_regular(&sb);
+        if (r < 0)
+                return r;
+
         return get_block_device(swap->device, ret_dev);
 }